热更新 AndFix 源码解析

apkpatch.bat -f 修复的apk -t 老的apk -o 输出 -k 签名文件 -p 签名密码 -a 签名别名 -e 签名别名密码

public void init(String appVersion) {
		if (!mPatchDir.exists() && !mPatchDir.mkdirs()) {// make directory fail
			Log.e(TAG, "patch dir create error.");
			return;
		} else if (!mPatchDir.isDirectory()) {// not directory
			mPatchDir.delete();
			return;
		}
		SharedPreferences sp = mContext.getSharedPreferences(SP_NAME,
				Context.MODE_PRIVATE);
		String ver = sp.getString(SP_VERSION, null);
		if (ver == null || !ver.equalsIgnoreCase(appVersion)) {
			cleanPatch();
			sp.edit().putString(SP_VERSION, appVersion).commit();
		} else {
			initPatchs();
		}
}

//将应用目录下apatch目录下的后缀名为.apatch的文件添加到线程安全的数据结构中保存
SortedSet<Patch> mPatchs = new ConcurrentSkipListSet<Patch>();
private Patch addPatch(File file) {
		Patch patch = null;
		if (file.getName().endsWith(SUFFIX)) {
			try {
				patch = new Patch(file);
				mPatchs.add(patch);
			} catch (IOException e) {
				Log.e(TAG, "addPatch", e);
			}
		}
		return patch;
}